AI Video Translator: Dub Any Video Into Any Language

VdoBloom’s AI Video Translator dubs a talking video into another language while keeping the speaker’s timing, your own background music and, optionally, the lip movement. You upload an MP4 or MOV of someone talking, pick a target language, review every translated line before anything is voiced, then choose a voice and generate the dub. Pricing runs per step, and every price is shown before you commit.

Updated October 2026.

What the tool does and what it does not do

The tool takes a clip of a person speaking and gives you back the same clip with that person speaking another language. It handles the hard parts for you: it separates the voice from the music and room sound, transcribes each spoken line with its exact timing, translates it, and drops the new line back at the same moment. The result is not a subtitle file you have to sync later. It is a dubbed video you can upload as it is.

What it does not do is invent a performance. It will not turn a bad recording into a good one, it does not translate on-screen text, and it does not change who the speaker is. If the original is a clear, well-lit talking clip, the dub sits comfortably on top of it. If the original is muffled, or has someone shouting over loud music, no translator can recover words that were never cleanly spoken.

Before you start

Format: an MP4 or MOV file of someone talking.
Length: up to 3 minutes per video.
Audio: one clear main speaker works best, so the voice separation step has something clean to pull apart.
Music and effects: keep them — the tool keeps your original soundtrack.

How to dub a video: step by step

Upload the clip. Choose your MP4 or MOV, up to 3 minutes. The first thing the tool does is separate the voice from the music and the room sound, then transcribe each line with its timing.
Pick the target language. Choose the language you want the dub in. The list covers Hindi, Tamil, Telugu, Bengali, Marathi, Kannada, Malayalam, Gujarati, Punjabi, Urdu, Spanish, French, Arabic and more.
Review the translation line by line. Nothing is voiced yet. Each line shows the original text, the translation and whether it fits its time slot. You can edit any line for free until it reads the way you want.
Choose a voice. Pick a stock voice, or on paid plans use your own voice after a consent step — it is reproduced from the video for this dub only and deleted right after.
Add lip sync if you want it. This is optional and priced per second of video. Skip it when the speaker is mostly off-camera or the shots are wide.
Dub. Generate the final video. The new voice starts at the same moments as the original, and your music plays underneath it.

How the timing works

Everything in a dub depends on fitting new words into old gaps. A Hindi sentence rarely takes exactly as long to say as the English it replaces, so the tool has two ways to make a line land on time.

Fastest speech: a translated line that runs long is sped up a little — up to 30% faster at the very most.
Automatic shortening: if a line is still too long even at full speed, it is trimmed automatically before it is placed, so it never spills over the next line.
Start on the beat: each line begins exactly where the original line began, so the speaker opens their mouth at the right moment even when the sentence is shorter.

That 30% ceiling is why short source lines dub so well. A short spoken line can be stretched or squeezed without anyone noticing. A long, breathless sentence has nowhere to go, so it gets hurried or cut.

Your music stays

The voice is separated from the rest of the audio, so your own background music and soundtrack are kept and played under the new voice. The music is lowered only while someone is speaking, then returns to its normal level in the gaps. That means you do not lose the mood of the original clip, and you do not need to hunt down a copyright-free replacement track. If you want a technical walk-through of how speech, timing and lip movement fit together, see our guide to AI voice and lip sync.

What it costs

The dub is priced in three separate pieces, and each price is shown before that step runs. Failed steps are refunded automatically.

Step	How it is priced
Voice separation and transcription	Per minute of your video
The dub itself	Per character of the translated text
Lip sync (optional)	Per second of video

Because transcription is charged by the minute and the dub by the character, a short clip with dense speech costs a little more on the dub step than a short clip with sparse speech. The running total is on screen at each step, so there are no surprises. If you want the bigger picture of how credits work across the platform, read AI video credits explained.

Which voice to pick

Most jobs are fine with a stock voice. Those are consistent, need no consent step, and leave nothing to clean up afterwards. Choose your own voice when the speaker’s identity matters — for example when you are dubbing your own course, your own product review, or a client’s footage where the same person should stay recognisable. That path runs through a consent step because you are asking the platform to reproduce a voice from the clip. The recording is used for this dub only and deleted right after it finishes.

Match the voice to the original performance. A calm explainer wants a calm voice; a fast, high-energy ad wants a voice that can keep up. If you are unsure, dub a short section first and listen before you commit the whole clip.

Lines that dub cleanly

The biggest thing you control is how the original script was written. Lines that fit their slot translate and re-time well. Compare these examples.

Good: “This bag holds a laptop, a charger and a notebook.” One idea, easy to shorten.
Good: “It takes about thirty seconds to set up.” Concrete, short, replaceable words.
Good: “We built this for people who move a lot.” Plain and spoken.
Risky: “Our proprietary, multi-patent, industry-first architecture redefines everything about how teams collaborate at scale.” Long, jargon-heavy, and much longer in most target languages.
Risky: “It’s, uh, kind of like — you know, better.” Filler and false starts transcribe poorly and translate worse.

Common mistakes

Skipping the review step. It exists so you catch a mistranslated name or a bad time-slot fit before you pay for the dub.
Dubbing a clip where two people talk over each other. Voice separation works best with one clear speaker.
Expecting a perfect lip match without lip sync. Timing keeps the mouth open at the right moment, but the shapes only line up if you turn lip sync on.
Ignoring the fit flag. If a line is flagged as not fitting, fix it in the review step rather than relying on the automatic shortening.
Exporting before checking names and numbers. Brand names and figures are the most common things to come out wrong, and they are free to fix before the dub.

Video or photo: which sibling tool to open

If your source is a video, stay in the Video Translator. If your source is a photo, open Translate & Dub instead. That version adds a script — typed, or transcribed from a recording — lets you pick a target language, and makes your photo speak it, in videos up to 5 minutes long. Its language list is Hindi, Tamil, Telugu, Bengali, Marathi, Kannada, Malayalam, English, Spanish, Arabic, French and German. It is the right choice when you have a portrait or a product shot and no footage of a person talking. For the wider question of moving a performance between languages and formats, our guide to AI video localization and motion transfer goes deeper.

Frequently asked questions

How long can the video be?

Up to 3 minutes per upload. The Translate & Dub photo version goes up to 5 minutes.

Which languages are supported?

The video tool covers Hindi, Tamil, Telugu, Bengali, Marathi, Kannada, Malayalam, Gujarati, Punjabi, Urdu, Spanish, French, Arabic and more.

Is my background music kept?

Yes. The voice is separated from the rest of the audio, so your original soundtrack plays under the new voice and is only lowered while someone speaks.

What happens to a line that is too long?

It is sped up a little, at most 30% faster. If it is still too long, it is shortened automatically before it is placed.

When am I charged?

Each step — voice separation and transcription, the dub, and optional lip sync — shows its price before it runs, and failed steps are refunded. Full plan and pack details are on the pricing page.

Ready to try it? Open the Video Translator, upload a clip of someone talking, pick a language and review the lines before you spend anything. New accounts start with 10 free credits and no card required, so you can dub a short clip and hear how it lands before you commit.